TY  - RPRT
TI  - Variational method of determining effective moduli of polycrystals: (A) hexagonal symmetry, (B) trigonal symmetry
AU  - L. Peselnick
AU  - R. Meister
PY  - 1965
DO  - 10.1063/1.1714598
UR  - https://pubs.usgs.gov/publication/70010463
ID  - 70010463
ER  -